using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Drawing.Imaging;
using System.Drawing;
using System.Collections;
using System.IO;

public partial class ImageViewer : System.Web.UI.Page 
{
    protected int imageNo;
    protected ArrayList ImageList=new ArrayList();
    protected string BaseURL = "http://www.eee.bham.ac.uk/spannm/Lake District 2005";

    protected void Page_Load(object sender, EventArgs e)
    {
        string baseDirectory = TextBox1.Text;
        int imageWidth, imageHeight;
        
        if (!IsPostBack)
        {
            imageNo=0;
            foreach(string s in Directory.GetFiles(Server.MapPath(@"X:\Lake District 2005\")))
            {
                ImageList.Add(BaseURL+Path.GetFileName(s));
            }

            ViewState.Add("ImageNo", imageNo);
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        System.Drawing.Image currentImage;
        imageNo = (int)ViewState["ImageNo"];
        ImageList = (ArrayList)ViewState["ImageList"];
        String s = (string)ImageList[imageNo];
        Response.Write(s);
        imageNo = imageNo + 1;
        currentImage = System.Drawing.Image.FromFile();
        int height = currentImage.Height;
        Image1.ImageUrl
    }
}